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Lesson 7
Chapter 2 Forces
Section 3 Driving forces and resisting forces
This Lesson
Discussing exercises
Newtons first
law
Air resistance
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Physics
Middelbare school
vwo
Leerjaar 3
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10 slides
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text slides
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Lesson duration is:
45 min
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Items in this lesson
Chapter 2 Forces
Section 3 Driving forces and resisting forces
This Lesson
Discussing exercises
Newtons first
law
Air resistance
Slide 1 - Slide
Discussing section 2
exercise 5 and 6
Slide 2 - Slide
Practice exercise
On an experimental setup on the moon a weight with a mass of 5 kilogram is hung on a spring with a spring constant of 0,45 N/m. Calculate the extension of this spring.
Slide 3 - Slide
Voyager 2
Link
Slide 4 - Slide
Slide 5 - Slide
Slide 6 - Slide
Newtons first law
If the resultant force of all the forces is zero (0N), the object is either stationary or it moves along a straight line at a constant speed
Slide 7 - Slide
Air resistance
F
r
,
a
=
2
1
C
d
⋅
ρ
⋅
A
⋅
v
2
F
r,a
: Force, resistance, air resistance (n)
C: resistance coefficient (no unit)
ρ: The density of air (or whatever medium the object is traveling through) (kg/m
3
)
A: area of the object (m
2
)
v: the speed of object (m/s)
Slide 8 - Slide
Slide 9 - Slide
Slide 10 - Slide
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